MILITARY HISTORY Private Allan Ethelbert Gordon Sanderson — 552619 — ACTIVE SERVICE (World War I) Allan Ethelbert Gordon Sanderson completed the Attestation Paper, Canadian Over-Seas Expeditionary Force (CEF) [O/S] on May 18, 1915. He was 26 years, 1 month and 28 days old when, as a single man, he filled out the Attestation Paper at […]